US1449093A - Unwinder - Google Patents

Description

Mair. 2U, 1923. 1,449,499.?)

. D. FINLEY UNWINDER Filed May 24, 1920 5 sheets-sheet l I f/j'mv mlllllllllll ,llllllfifillllllllllllllllll W/TNE'SS. INVENTOR WW5 W Mar. 2%, 1923.

D. FINLEY UNWINDER 5 sheets-sheet 2 Filed May 24, 1920 I WTNESS:

J Ann mam Man". 21), 2923. 11,449,093

D. FINLEY UNWI NDER Filed May 24, 1920 5 sheets-s heet 5 W/ TNESSI IN VENTOR 1 J g 002/? fiA/LEY.

Patented ll/lar. Ell, 1923..

' UNHTED PATNT @FFHQIE.

IDOZIER FINLIEY, OF OAKLAND, CALIFORNIA, ASSIGNOR TO THE PARAFFINE COM- PANIESQINC OF SAN FRANCISCO, CALIFORNIA, A CORPORATION- OF DELAWARE.

UNl/VINDER.

Application filed May 24, 1920. Serial No. 383,607.

T 0 all whom it may concern:

Be it known that I, Dozrnr. FINLnr, a citizen of the United States, and a resident of Oakland. county of Alameda, and State of California, have invented a new and useful Unwinder, of which the following is a specification.

My invention relates to mechanism for holding supply rolls of material while the material is being unwound.

An object of the invention is to provide means for handling heavy supply rolls of rooting fabric from which material is being fed to the saturating machine. With the broad object of providing an apparatus to perform the duty indicated, lesser objects comprise the provision of a machine in which either narrow or wide rolls may be readily loaded, without manual lifting, and when loaded permitted to turn, under the control of an adjustable frictional brake, as the web is pulled into the saturating apparatus.

Another object of my invention is to provide an apparatus of the character described in which the supply rolls are so handled that a continuous web may be delivered to the saturating apparatus.

The invention has other features of advantage, some of which, with the foregoing, will be set forth in the following description of the preferred form of my invention which is illustrated in the drawings accompanying and forming part of the specification. It is to be understood that I do not limit myself to the showing made by the said drawings and description, as I may adopt variations of the preferred form within the scope of my invention as set forth in the claim.

Referring to the drawings, Figure 1 is an end elevation of the unwinder, and Figure 2 is aside elevation thereof. Figure 3 is an end elevation of the unwinder in Opera tion and loaded with rolls. Figure 4c is a side view of the end of one of the un winder arms showing the brake drum and band. Figure 5 is a plan view of the structure shown in Figure 4.

In the manufacture of felt roofing the unwound as it is drawn into the saturat-' ing apparatus. Preferably I make the unwinder capable of handling at one time four narrow rolls, two of them being unwound to furnish web to the saturating apparatus, and the others being ready to be spliced on to the ends of the preceding rolls. That is to say, while two rolls are being unwound, two others are being loaded, and made ready to be swung into the position of the exhausted rolls, the vacant arbors being replaced with full ones, as fast as they are emptied.

Journaled in suitable bearings 2 arranged on the pedestal frames 3, 4 and 5 is a shaft 6. Frames 3 and 4 are spaced relatively close, and on the shaft between the bearings on these frames is fixed a worm wheel 7 in mesh with a worm 8 forming part of the shaft 9 journaled in bearings 11 fixed to the frames 3 and 4:. The shaft is provided with a gear 12 meshing with the pinion 13 on the shaft of the motor 14, which is provided with an electrically operated brake. Thus the shaft 6 may be slowly rotated at will in the direction of the arrow 15 by starting the motor.

. Fixed on the shaft 6 adjacent the frame at are arms 16 and 17 extending radially on opposite sides of the shaft. Fixed on the shaft adjacent the frame 5 are four similar arms two of which 18 and 19 are parallel to the arms 16 and 17, and the other two of which 21 and 22 lie in a plane perpendicular to the plane of the others. In Figure 2 arm 21 extends toward the observer, arm 22 lying on the the opposite side. Midway between the end arms are arranged four middle arms 23, 2 1, 25 and 26. Arms 28 and 25 he in the same plane with the end arms 16, 17, 1S and 19, and arms 24 and 26 lie in the same plane with right end arms 21 and 22. In Figure 1, the end arms 21 and 22 are hidden behind the middle arms 24: and 26 respectively lying in the same plane, and middle arms 23 and 25 are similarly hidden behind arms 16 and 17 respectively. The middle arms are removably secured to the hub 27 by bolts 28 so that they may be detached when desired, to leave a clear space between the end arms in order that a wide roll on a long arbor may be mounted on the arms 1618 on one side and on arms 17 19 on the other.

In the side of each arm near its end is formed one-half of a bearing 28, the other half being formed in a cap 29 hinged to the arm by pivot pin 31. These bearings are adapted to receive the ends 32 of arbors 33, upon which the rolls of web 34 are mounted' In order to prepare a roll for the unwinder, an arbor is thrust through i the central aperture of the core 35 on which roll.

pressure on the bushings to seat them in the ends of the cores. Customarily the settingof the bushing 36 is not disturbed, only the bushing 37 being removed to seat a new Thus the positions of successive rolls do not vary, and the webs are substantially in line for splicing. The roll with the arbor thus fixed .and centered therein is then rolled close to the apparatus'as indicated in Figure ,1 so that a pair of empty arms as for instance 16 and 23 may bemoved, by rotation'ofthe shaft 6, under the ends 32 of the arbor to seat them in the hearings in the arms. The bearing caps are then closed down over the shaft and locked by pins 40. The arbor with its roll of roofing fabric is now journaled in the arms, which upon fur ther rotation of the shaft 6 pick up the roll and carry it upwardly and around to the position in which it lies while the web is being unwound therefrom.

In Figure 3 T have shown thcapparatus loaded with four rolls 34, 34 34 and 34. The webs 41 are being drawn together from rolls 34 and 34 and fed side by side into :the saturating apparatus which saturates both webs at the same time. With the exhaustion of rolls 34 and 34 the motor is started and the arms turned through about 90. This carries roll 34 to the upper front'position, and roll 34 to the upper rear position, where their ends are spliced to the preceding webs. A new roll is now loaded into the arms to take the place of roll 34, and the arms are again moved through about 90 moving roll 34 and the middle arms are removed. The wide rolls of roofing fabric 42 are then arranged on long arbors, and picked up and rotatably journaled in arms l6-18 and 17-19 in a manner already made clear.

Means are provided for brakingthe rotation of the arbors so that a proper tension may, be kept on the webs as they leave the rolls, and the rolls are prevented from turning, except as the webs are unwound from them. A flanged brake; drum 43 is fixed on one side of each arbor, and when the arbor is within its hearings in the unwinder arms, the brake drum is encircled by the brake band 44, pivotally attached to a stud 46 fixed on the side of the arm. A screw 47 pivotally attached to one'side of the brake band is engaged in the hand wheel 48 seated on the out turned flanged end 49 of the other side of the brake band which is slotted,

of the brake band then spring apart, freeing the drum. The pins 40 are next removed and the bearing caps turned back to free the arbor.

Means are also provided for braking the rotation of the shaft 6 so that the arms may be brought to rest in the desired position, and so that the unwinder if unevenly loaded will not turn out of its set position on account of the unbalanced load- In the present case this is accomplished by the electrically operated brake incorporated in the motor in accordance with known practice, It is obvious without specific illustration that such a brake may be applied directly to shaft 6. In either case its function is the same, i. e., to provide a positive brake or lock to more accurately control the movement of the arms about the center of rotation.

I claim:

An unwinder comprising a shaft, a pair of alined arms radially arranged near the left end of said shaft, two pair of arms spaced 90 apart arranged near the right end of said shaft, one pair of right arms left arms, arbors, and means on said arms being parallel to said left arms, a pair of for demountably journaling said arbors arms parallel to said left arms removably thereon. 10 connected to said shaft between said right In testimony whereof, I have hereunto 5 and left arms, a pair of arms parallel to set my hand.

the other pair of right arms removably conneeted to said shaft between said right and DOZIER FINLEY.

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